(Original post by natty_d)
Three things I couldn't remember how to do at all :

No 1. The curve with equation y=x^2 has been translated to give the curve f(x).
Find f(x) in terms of x.

(The curve in the photo only has the point 2, -4 on it at the lowest point of the parabola if that makes any sense )

The minimum of is at (0,0). How can you translate such that the minimum is at (2,-4)? What does this translation mean algebraicly?
Hint 1:

Spoiler:

Show

If the point (0,0) has been translated to the point (a, b), then the translation is a units horizontally (with positive meaning to the right, and negative meaning to the left), and b units vertically (with positive meaning up and negative meaning down).

Hint 2:

Spoiler:

Show

If has been translated a units horizontally and b units vertically to get , then .

(Original post by GHOSH-5)
The minimum of is at (0,0). How can you translate such that the minimum is at (2,-4)? What does this translation mean algebraicly?
Hint 1:

Spoiler:

Show

If the point (0,0) has been translated to the point (a, b), then the translation is a units horizontally (with positive meaning to the right, and negative meaning to the left), and b units vertically (with positive meaning up and negative meaning down).

Hint 2:

Spoiler:

Show

If has been translated a units horizontally and b units vertically to get , then .

next year will be interesting; so will our classes-see who's dropped what and what teachers we have; ours have changed major-ly with different teachers etc. plus there's only going to be two form classes

(Original post by Malsy)
next year will be interesting; so will our classes-see who's dropped what and what teachers we have; ours have changed major-ly with different teachers etc. plus there's only going to be two form classes

They got rid of forms in the sixth form at school
*at sports day we still were like 'woo go lewis' but still...we didn't lose for a change *

I'm really interested to see whos stayed on...I think I might be the only person in chemistry and physics....